dipper.data {mra}R Documentation

European Dipper data

Description

Example capture-recapture data from a study of European dippers.

Usage

data(dipper.data)

Format

A data frame containing 294 capture histories and the sex designation of birds captured. Capture indicators are either 0 = not captured, 1 = captured, or 2 = captured but died and not released back into the population. Columns in the data frame are:

h1
a numeric vector indicating capture at occasion 1
h2
a numeric vector indicating capture at occasion 2
h3
a numeric vector indicating capture at occasion 3
h4
a numeric vector indicating capture at occasion 4
h5
a numeric vector indicating capture at occasion 5
h6
a numeric vector indicating capture at occasion 6
h7
a numeric vector indicating capture at occasion 7
males
a numeric vector indicating males. 1 = males, 0 = females
females
a numeric vector indicating females. 0 = males, 1 = females

Details

This is a popular capture-recapture example data set. It has been analyzed by Lebreton et al. (1992) Amstrup et al. (2005) and others.

dipper.males is a vector indicating male birds. I.e., dipper.males <- dipper.data\$males

dipper.histories is a matrix of just the capture history columns h1 - h7, extracted from dipper.data and made into a matrix. This matrix is fed directly into F.cr.estim.

Source

Amstrup, S. C., McDonald, T. L., and Manly, B. F. J. 2005. Handbook of Capture-Recapture Analysis. Princeton University Press. [Chapter 9 has several examples that use this data.]

Examples

data(dipper.data)

[Package mra version 1.2 Index]